Cat Gatekeeper Chrome Extension by ZOKUZOKU

Cat Gatekeeper Chrome Extension Goes Viral

Created by Japanese indie developer ZOKUZOKU, this free Chrome extension enforces breaks by letting a giant cat take over your screen.
2026-04-28

Cat Gatekeeper overlay placeholder

In late April 2026, Cat Gatekeeper became a viral productivity tool. Developed by ZOKUZOKU, it targets doomscrolling by forcing users to pause after hitting a time limit on social platforms.

How It Works

Instead of a gentle reminder, Cat Gatekeeper uses a hard interruption model:

  • You set a browsing limit and a break duration.
  • Only active tabs on supported social sites count toward usage.
  • When time is up, a giant cat overlay blocks interaction until the break timer ends.

This mechanic mimics a real cat jumping on your keyboard: cute, slightly annoying, and effective.

Supported Platforms

According to the research source, Cat Gatekeeper currently supports major platforms such as X, YouTube, Facebook/Instagram, TikTok, Threads, Reddit, and Bluesky. It is currently distributed as a Chrome extension.

Why It Spread Quickly

The extension combines humor and behavioral friction. Users share it because it is memorable, and they keep using it because it creates a real pause instead of a dismissible notification.

Coverage from media and social channels also accelerated adoption, positioning Cat Gatekeeper as a playful but practical anti-doomscrolling tool.

Privacy and Pricing

Reports indicate the extension is free, ad-free, and designed to be privacy-friendly, requesting only the permissions needed to apply the break overlay behavior.

FAQ

What is Cat Gatekeeper?

A free Chrome extension that enforces social media breaks with a full-screen cat overlay.

Who made it?

Japanese indie developer ZOKUZOKU.

Is it available outside Chrome?

The current live release is Chrome-based, with other browser support mentioned as future work.

Can I change it to my own cat image?

Not yet. The current version uses the built-in Cat Gatekeeper character only, and custom cat uploads or personal image replacement are not supported at this time.

Is there a standalone app?

Not yet. Right now the public release is the Chrome extension, while standalone apps are still in the planning and development stage.

For installation and updates, visit the official site: https://www.catgatekeeper.org/